The processing of pseudoword form and meaning in production and comprehension: A computational modeling approach using linear discriminative learning
| Autor: | Susanne Gahl, Elnaz Shafaei-Bajestan, Yu Ying Chuang, Marie Lenka Vollmer, Peter Hendrix, R. Harald Baayen |
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| Rok vydání: | 2020 |
| Předmět: |
Morphology
Cognitive model Speech production Auditory pseudowords Computer science Experimental and Cognitive Psychology Lexicon computer.software_genre Semantics Article 050105 experimental psychology Discrimination Learning 03 medical and health sciences Auditory comprehension 0302 clinical medicine Arts and Humanities (miscellaneous) Morpheme Developmental and Educational Psychology Lexical decision task Humans Speech 0501 psychology and cognitive sciences General Psychology Psycholinguistics Mental lexicon business.industry 05 social sciences Computational modeling Pseudoword Linear discriminative learning Psychology (miscellaneous) Artificial intelligence Comprehension business computer 030217 neurology & neurosurgery Natural language processing |
| Zdroj: | Behavior Research Methods |
| Popis: | Pseudowords have long served as key tools in psycholinguistic investigations of the lexicon. A common assumption underlying the use of pseudowords is that they are devoid of meaning: Comparing words and pseudowords may then shed light on how meaningful linguistic elements are processed differently from meaningless sound strings. However, pseudowords may in fact carry meaning. On the basis of a computational model of lexical processing, linear discriminative learning (LDL Baayen et al., Complexity, 2019, 1–39, 2019), we compute numeric vectors representing the semantics of pseudowords. We demonstrate that quantitative measures gauging the semantic neighborhoods of pseudowords predict reaction times in the Massive Auditory Lexical Decision (MALD) database (Tucker et al., 2018). We also show that the model successfully predicts the acoustic durations of pseudowords. Importantly, model predictions hinge on the hypothesis that the mechanisms underlying speech production and comprehension interact. Thus, pseudowords emerge as an outstanding tool for gauging the resonance between production and comprehension. Many pseudowords in the MALD database contain inflectional suffixes. Unlike many contemporary models, LDL captures the semantic commonalities of forms sharing inflectional exponents without using the linguistic construct of morphemes. We discuss methodological and theoretical implications for models of lexical processing and morphological theory. The results of this study, complementing those on real words reported in Baayen et al., (Complexity, 2019, 1–39, 2019), thus provide further evidence for the usefulness of LDL both as a cognitive model of the mental lexicon, and as a tool for generating new quantitative measures that are predictive for human lexical processing. |
| Databáze: | OpenAIRE |
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